5 components:
Water (ROMIL H951)
containing
Pyridine-2,6-dicarboxylic acid (PDCA) 35 mM
Potassium Hydroxide 330 mM
Potassium Sulphate 28 mM
Formic Acid 370 mM
pH after dilution 4.2 ±0.1
Protect from atmospheric CO2.
Application: Eluant concentrate (5x) for ion chromatography, equivalent to Dionex 046088